There are 2 things to check:
1) Please make sure your thermostat is communicating with the cloud server.
2) Check the location information for the thermostat - Make sure you have that information filled in - especially the zip code.
To find the location information go to the web portal:
Click on down arrow
Click on Manage Location(s)
Enter location information including a valid zip code
Now press save and then click on thermostat(s)
Now you should have Today's Weather displayed.